75 static int nilfs_setup_super(struct super_block *sb, int is_mount);
76 static int nilfs_remount(struct super_block *sb, int *flags, char *data);
78 static void nilfs_set_error(struct super_block *sb)  in nilfs_set_error()  argument
80 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_set_error()
86 		sbp = nilfs_prepare_super(sb, 0);  in nilfs_set_error()
91 			nilfs_commit_super(sb, NILFS_SB_COMMIT_ALL);  in nilfs_set_error()
109 void nilfs_error(struct super_block *sb, const char *function,  in nilfs_error()  argument
112 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_error()
122 	       sb->s_id, function, &vaf);  in nilfs_error()
126 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_error()
127 		nilfs_set_error(sb);  in nilfs_error()
131 			sb->s_flags |= MS_RDONLY;  in nilfs_error()
137 		      sb->s_id);  in nilfs_error()
140 void nilfs_warning(struct super_block *sb, const char *function,  in nilfs_warning()  argument
152 	       sb->s_id, function, &vaf);  in nilfs_warning()
158 struct inode *nilfs_alloc_inode(struct super_block *sb)  in nilfs_alloc_inode()  argument
190 static int nilfs_sync_super(struct super_block *sb, int flag)  in nilfs_sync_super()  argument
192 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_sync_super()
264 struct nilfs_super_block **nilfs_prepare_super(struct super_block *sb,  in nilfs_prepare_super()  argument
267 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_prepare_super()
277 			       sb->s_id);  in nilfs_prepare_super()
291 int nilfs_commit_super(struct super_block *sb, int flag)  in nilfs_commit_super()  argument
293 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_commit_super()
316 	return nilfs_sync_super(sb, flag);  in nilfs_commit_super()
327 int nilfs_cleanup_super(struct super_block *sb)  in nilfs_cleanup_super()  argument
329 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_cleanup_super()
334 	sbp = nilfs_prepare_super(sb, 0);  in nilfs_cleanup_super()
347 		ret = nilfs_commit_super(sb, flag);  in nilfs_cleanup_super()
357 static int nilfs_move_2nd_super(struct super_block *sb, loff_t sb2off)  in nilfs_move_2nd_super()  argument
359 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_move_2nd_super()
385 	nsbh = sb_getblk(sb, newblocknr);  in nilfs_move_2nd_super()
417 int nilfs_resize_fs(struct super_block *sb, __u64 newsize)  in nilfs_resize_fs()  argument
419 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_resize_fs()
426 	devsize = i_size_read(sb->s_bdev->bd_inode);  in nilfs_resize_fs()
446 	ret = nilfs_construct_segment(sb);  in nilfs_resize_fs()
451 	nilfs_move_2nd_super(sb, sb2off);  in nilfs_resize_fs()
453 	sbp = nilfs_prepare_super(sb, 0);  in nilfs_resize_fs()
467 		ret = nilfs_commit_super(sb, NILFS_SB_COMMIT_ALL);  in nilfs_resize_fs()
483 static void nilfs_put_super(struct super_block *sb)  in nilfs_put_super()  argument
485 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_put_super()
487 	nilfs_detach_log_writer(sb);  in nilfs_put_super()
489 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_put_super()
491 		nilfs_cleanup_super(sb);  in nilfs_put_super()
500 	sb->s_fs_info = NULL;  in nilfs_put_super()
503 static int nilfs_sync_fs(struct super_block *sb, int wait)  in nilfs_sync_fs()  argument
505 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_sync_fs()
511 		err = nilfs_construct_segment(sb);  in nilfs_sync_fs()
515 		sbp = nilfs_prepare_super(sb, nilfs_sb_will_flip(nilfs));  in nilfs_sync_fs()
518 			nilfs_commit_super(sb, NILFS_SB_COMMIT);  in nilfs_sync_fs()
529 int nilfs_attach_checkpoint(struct super_block *sb, __u64 cno, int curr_mnt,  in nilfs_attach_checkpoint()  argument
532 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_attach_checkpoint()
561 	err = nilfs_ifile_read(sb, root, nilfs->ns_inode_size,  in nilfs_attach_checkpoint()
585 static int nilfs_freeze(struct super_block *sb)  in nilfs_freeze()  argument
587 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_freeze()
590 	if (sb->s_flags & MS_RDONLY)  in nilfs_freeze()
595 	err = nilfs_cleanup_super(sb);  in nilfs_freeze()
600 static int nilfs_unfreeze(struct super_block *sb)  in nilfs_unfreeze()  argument
602 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_unfreeze()
604 	if (sb->s_flags & MS_RDONLY)  in nilfs_unfreeze()
608 	nilfs_setup_super(sb, false);  in nilfs_unfreeze()
615 	struct super_block *sb = dentry->d_sb;  in nilfs_statfs()  local
618 	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);  in nilfs_statfs()
669 	buf->f_bsize = sb->s_blocksize;  in nilfs_statfs()
685 	struct super_block *sb = dentry->d_sb;  in nilfs_show_options()  local
686 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_show_options()
741 static int parse_options(char *options, struct super_block *sb, int is_remount)  in parse_options()  argument
743 	struct the_nilfs *nilfs = sb->s_fs_info;  in parse_options()
809 nilfs_set_default_options(struct super_block *sb,  in nilfs_set_default_options()  argument
812 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_set_default_options()
818 static int nilfs_setup_super(struct super_block *sb, int is_mount)  in nilfs_setup_super()  argument
820 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_setup_super()
826 	sbp = nilfs_prepare_super(sb, 0);  in nilfs_setup_super()
857 	return nilfs_commit_super(sb, NILFS_SB_COMMIT_ALL);  in nilfs_setup_super()
860 struct nilfs_super_block *nilfs_read_super_block(struct super_block *sb,  in nilfs_read_super_block()  argument
868 	*pbh = sb_bread(sb, sb_index);  in nilfs_read_super_block()
874 int nilfs_store_magic_and_option(struct super_block *sb,  in nilfs_store_magic_and_option()  argument
878 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_store_magic_and_option()
880 	sb->s_magic = le16_to_cpu(sbp->s_magic);  in nilfs_store_magic_and_option()
884 	sb->s_flags |= MS_NOATIME;  in nilfs_store_magic_and_option()
887 	nilfs_set_default_options(sb, sbp);  in nilfs_store_magic_and_option()
894 	return !parse_options(data, sb, 0) ? -EINVAL : 0 ;  in nilfs_store_magic_and_option()
897 int nilfs_check_feature_compatibility(struct super_block *sb,  in nilfs_check_feature_compatibility()  argument
912 	if (!(sb->s_flags & MS_RDONLY) && features) {  in nilfs_check_feature_compatibility()
921 static int nilfs_get_root_dentry(struct super_block *sb,  in nilfs_get_root_dentry()  argument
929 	inode = nilfs_iget(sb, root, NILFS_ROOT_INO);  in nilfs_get_root_dentry()
1018 int nilfs_checkpoint_is_mounted(struct super_block *sb, __u64 cno)  in nilfs_checkpoint_is_mounted()  argument
1020 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_checkpoint_is_mounted()
1035 		inode = nilfs_ilookup(sb, root, NILFS_ROOT_INO);  in nilfs_checkpoint_is_mounted()
1059 nilfs_fill_super(struct super_block *sb, void *data, int silent)  in nilfs_fill_super()  argument
1066 	nilfs = alloc_nilfs(sb->s_bdev);  in nilfs_fill_super()
1070 	sb->s_fs_info = nilfs;  in nilfs_fill_super()
1072 	err = init_nilfs(nilfs, sb, (char *)data);  in nilfs_fill_super()
1076 	sb->s_op = &nilfs_sops;  in nilfs_fill_super()
1077 	sb->s_export_op = &nilfs_export_ops;  in nilfs_fill_super()
1078 	sb->s_root = NULL;  in nilfs_fill_super()
1079 	sb->s_time_gran = 1;  in nilfs_fill_super()
1080 	sb->s_max_links = NILFS_LINK_MAX;  in nilfs_fill_super()
1082 	sb->s_bdi = &bdev_get_queue(sb->s_bdev)->backing_dev_info;  in nilfs_fill_super()
1084 	err = load_nilfs(nilfs, sb);  in nilfs_fill_super()
1089 	err = nilfs_attach_checkpoint(sb, cno, true, &fsroot);  in nilfs_fill_super()
1096 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_fill_super()
1097 		err = nilfs_attach_log_writer(sb, fsroot);  in nilfs_fill_super()
1102 	err = nilfs_get_root_dentry(sb, fsroot, &sb->s_root);  in nilfs_fill_super()
1108 	if (!(sb->s_flags & MS_RDONLY)) {  in nilfs_fill_super()
1110 		nilfs_setup_super(sb, true);  in nilfs_fill_super()
1117 	nilfs_detach_log_writer(sb);  in nilfs_fill_super()
1132 static int nilfs_remount(struct super_block *sb, int *flags, char *data)  in nilfs_remount()  argument
1134 	struct the_nilfs *nilfs = sb->s_fs_info;  in nilfs_remount()
1139 	sync_filesystem(sb);  in nilfs_remount()
1140 	old_sb_flags = sb->s_flags;  in nilfs_remount()
1143 	if (!parse_options(data, sb, 1)) {  in nilfs_remount()
1147 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL);  in nilfs_remount()
1154 		       "incomplete recovery state.\n", sb->s_id);  in nilfs_remount()
1158 	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))  in nilfs_remount()
1162 		nilfs_detach_log_writer(sb);  in nilfs_remount()
1163 		sb->s_flags |= MS_RDONLY;  in nilfs_remount()
1170 		nilfs_cleanup_super(sb);  in nilfs_remount()
1189 			       sb->s_id, (unsigned long long)features);  in nilfs_remount()
1194 		sb->s_flags &= ~MS_RDONLY;  in nilfs_remount()
1196 		root = NILFS_I(d_inode(sb->s_root))->i_root;  in nilfs_remount()
1197 		err = nilfs_attach_log_writer(sb, root);  in nilfs_remount()
1202 		nilfs_setup_super(sb, true);  in nilfs_remount()
1209 	sb->s_flags = old_sb_flags;  in nilfs_remount()